首页 / 网页编程 / ASP.NET / ASP.NET GirdView学习之三 排序

1using System;2using System.Data;3using System.Configuration;4using System.Collections;5using System.Web;6using System.Web.Security;7using System.Web.UI;8using System.Web.UI.WebControls;9using System.Web.UI.WebControls.WebParts;10using System.Web.UI.HtmlControls;11using System.Collections.Generic;1213public partial class GridViewSortingTest : System.Web.UI.Page14{15  protected void Page_Load（object sender, EventArgs e）16  {17    if （！IsPostBack）18    {19      ClientInfoAccessObj accessor = new ClientInfoAccessObj（）;20      GridView1.DataSource = accessor.GetAllClients（）;//绑定所有客户信息21      GridView1.DataBind（）;22    }23  }24  //按照客户姓名进行排序比较25  public int CompareByClientName（ClientInfo Client1, ClientInfo Client2）26  {27    return Client1.ClientName.CompareTo（Client2.ClientName）;28  }2930  //按照邮编和地址进行排序比较31  public int CompareByPostCodeAndAddressStr（ClientInfo client1, ClientInfo client2）32  {33    int ret = client1.PostCode.CompareTo（client2.PostCode）;34    if （ret ！= 0）35      return ret;36    else//如果邮编一样37    {38      return client1.AddressStr.CompareTo（client2.AddressStr）;39    }40  }41  //按照邮编进行排序比较42  public int CompareByPostCode（ClientInfo client1, ClientInfo client2）43  {44    return client1.PostCode.CompareTo（client2.PostCode）;45  }46  //正在排序的事件47  protected void GridView1_Sorting（object sender, GridViewSortEventArgs e）48  {49    ClientInfoAccessObj accessor = new ClientInfoAccessObj（）;50    List<ClientInfo> clients = accessor.GetAllClients（）;51    switch （e.SortExpression）52    {53      case "ClientName":54        clients.Sort（CompareByClientName）;//参数是一个Comparison<T>类型的泛型委托的函数名55        break;56      case "MultiColumnSort":57        clients.Sort（CompareByPostCodeAndAddressStr）;58        break;59      case "PostCode":60        clients.Sort（CompareByPostCode）;61        break;62      default:63        ClientScript.RegisterClientScriptBlock（this.GetType（）, "InfoMsg", "alert（"不支持对此字段进行排序"）;", true）;64        break;65    }66    GridView1.DataSource = clients;//绑定显示数据67    GridView1.DataBind（）;68  }69  protected void btnSortByName_Click（object sender, EventArgs e）70  {71    GridView1.Sort（"ClientName", SortDirection.Ascending）;//此事件执行完毕再执行Sorting事件72  }73  protected void btnSortByPostCodeAndAddress_Click（object sender, EventArgs e）74  {75    GridView1.Sort（"MultiColumnSort", SortDirection.Ascending）;76  }77}78